Calculation of multidimensional potential energy surfaces for even-even transuranium nuclei: systematic investigation of the triaxiality effect on the fission barrier

doi:10.1088/1674-1137/42/5/054101

	Calculation of multidimensional potential energy surfaces for even-even transuranium nuclei: systematic investigation of the triaxiality effect on the fission barrier
	Liu, Min-Liang2 ; Wang, Hua-Lei 1; Chai, Qing-Zhen 1; Zhao, Wei-Juan 1
刊名	CHINESE PHYSICS C
	2018-05-01
卷号	42 页码:054101
关键词	static fission barriers potential energy surface approach triaxiality Woods-Saxon potential
ISSN号	1674-1137
DOI	10.1088/1674-1137/42/5/054101
英文摘要	Static fission barriers for 95 even-even transuranium nuclei with charge number Z = 94-118 have been systematically investigated by means of pairing self-consistent Woods-Saxon-Strutinsky calculations using the potential energy surface approach in multidimensional (beta(2), gamma beta(4) deformation space. Taking the heavier Cf-252 nucleus (with the available fission barrier from experiment) as an example, the formation of the fission barrier and the influence of macroscopic, shell and pairing correction energies on it are analyzed. The results of the present calculated P2 values and barrier heights are compared with previous calculations and available experiments. The role of triaxiality in the region of the first saddle is discussed, ft is found that the second fission barrier is also considerably affected by the triaxial deformation degree of freedom in some nuclei (e.g., the Z=112-118 isotopes). Based on the potential energy curves, general trends of the evolution of the fission barrier heights and widths as a function of the nucleon numbers are investigated. In addition, the effects of Woods-Saxon potential parameter modifications (e.g., the strength of the spin-orbit coupling and the nuclear surface diffuseness) on the fission barrier are briefly discussed.
资助项目	National Natural Science Foundation of China[11675148] ; National Natural Science Foundation of China[11505157] ; Project of Youth Backbone Teachers of Colleges and Universities of Henan Province[2017GGJS008] ; Foundation and Advanced Technology Research Program of Henan Province[162300410222] ; Outstanding Young Talent Research Fund of Zhengzhou University[1521317002] ; Physics Research and Development Program of Zhengzhou University[32410017]
WOS关键词	MACROSCOPIC-MICROSCOPIC MODEL ; DENSITY-FUNCTIONAL THEORY ; GROUND-STATE MASSES ; SUPERHEAVY NUCLEI ; HEAVY-NUCLEI ; SHELL STRUCTURE ; PARAMETERS ; ELEMENTS ; FORMULA ; REGION
WOS研究方向	Physics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000431788900009
资助机构	National Natural Science Foundation of China ; Project of Youth Backbone Teachers of Colleges and Universities of Henan Province ; Foundation and Advanced Technology Research Program of Henan Province ; Outstanding Young Talent Research Fund of Zhengzhou University ; Physics Research and Development Program of Zhengzhou University
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/47692]
专题	近代物理研究所_实验物理中心
作者单位	1.Zhengzhou Univ, Sch Phys & Engn, Zhengzhou 450001, Henan, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Liu, Min-Liang,Wang, Hua-Lei,Chai, Qing-Zhen,et al. Calculation of multidimensional potential energy surfaces for even-even transuranium nuclei: systematic investigation of the triaxiality effect on the fission barrier[J]. CHINESE PHYSICS C,2018,42:054101.
APA	Liu, Min-Liang,Wang, Hua-Lei,Chai, Qing-Zhen,&Zhao, Wei-Juan.(2018).Calculation of multidimensional potential energy surfaces for even-even transuranium nuclei: systematic investigation of the triaxiality effect on the fission barrier.CHINESE PHYSICS C,42,054101.
MLA	Liu, Min-Liang,et al."Calculation of multidimensional potential energy surfaces for even-even transuranium nuclei: systematic investigation of the triaxiality effect on the fission barrier".CHINESE PHYSICS C 42(2018):054101.